| 1 | Environmental Health | 16 | 522 | 2470 | 2605 |
| 2 | Artificial Intelligence | 12 | 484 | 2079 | 1659 |
| 3 | management | 22 | 451 | 1267 | 1552 |
| 4 | Chemistry | 27 | 410 | 4011 | 5490 |
| 5 | Pollution | 12 | 402 | 2959 | 3290 |
| 6 | Ecology | 12 | 303 | 3504 | 4385 |
| 7 | Biochemistry | 15 | 263 | 4718 | 5647 |
| 8 | environmental protection | 11 | 260 | 1872 | 2283 |
| 9 | Business | 15 | 247 | 928 | 1376 |
| 10 | Cognitive Science | 1 | 206 | 2328 | 1022 |
| 11 | Science | 28 | 205 | 4092 | 8883 |
| 12 | Sustainable Development | 6 | 195 | 1459 | 1467 |
| 13 | Manufacturing Processes | 4 | 192 | 2038 | 1478 |
| 14 | Research | 24 | 189 | 3721 | 7039 |
| 15 | Detectors | 6 | 186 | 1190 | 940 |
| 16 | Physics | 18 | 184 | 4515 | 7826 |
| 17 | Biotechnology | 18 | 182 | 2850 | 4918 |
| 18 | Microbiology | 14 | 181 | 3430 | 5240 |
| 19 | Environmental Toxicology | 5 | 180 | 1969 | 2042 |
| 20 | Environmental monitoring | 7 | 178 | 2676 | 3187 |
| 21 | Environmental pollutants | 4 | 174 | 2041 | 1839 |
| 22 | Environmental Policy | 7 | 173 | 2139 | 2829 |
| 23 | Nanotechnology | 5 | 171 | 3862 | 3768 |
| 23 | Toxicology | 4 | 171 | 4211 | 3773 |
| 25 | Molecular Biology | 12 | 170 | 4569 | 6566 |
| 26 | Technology | 8 | 169 | 2745 | 2795 |
| 27 | pollutants | 3 | 164 | 1967 | 1655 |
| 27 | environmental exposure | 3 | 164 | 1977 | 1507 |
| 29 | Production Engineering | 3 | 161 | 2015 | 1174 |
| 30 | environmental pollution | 6 | 152 | 3252 | 3849 |
| 31 | Environmental Management | 7 | 150 | 1948 | 2682 |
| 32 | Biophysics | 6 | 136 | 4345 | 4707 |
| 33 | Materials | 9 | 134 | 3791 | 4413 |
| 34 | Medicine | 19 | 130 | 5120 | 10000 |
| 35 | Chemical Engineering | 9 | 129 | 2862 | 3721 |
| 35 | Environment | 6 | 129 | 3677 | 5367 |
| 37 | micromechanics | 1 | 122 | 905 | 414 |
| 38 | Polymers | 6 | 120 | 3311 | 3423 |
| 39 | Optics | 9 | 119 | 3149 | 2965 |
| 40 | Diffusion of innovations | 5 | 118 | 25 | 31 |
| 41 | Aging | 2 | 115 | 3370 | 2308 |
| 42 | Green Chemistry | 6 | 108 | 1306 | 1880 |
| 43 | lasers | 8 | 101 | 1418 | 1670 |
| 44 | Technological Innovations | 1 | 93 | 1835 | 968 |
| 45 | Human-Computer Interaction | 1 | 90 | 2592 | 1449 |
| 46 | Biocompatible Materials | 2 | 85 | 4006 | 3996 |
| 47 | Water pollution | 3 | 79 | 2674 | 3027 |
| 48 | Information Science | 2 | 77 | 2994 | 2495 |
| 49 | Global Health | 2 | 76 | 1406 | 964 |
| 49 | Climate change | 2 | 76 | 1259 | 1720 |
| 49 | Optical materials | 5 | 76 | 2071 | 2714 |
| 49 | marketing | 1 | 76 | 2664 | 1800 |
| 49 | Export Marketing | 1 | 76 | 401 | 316 |
| 54 | Environmental Engineering | 6 | 75 | 2935 | 4121 |
| 55 | Water | 2 | 69 | 2872 | 3134 |
| 56 | Educational Technology | 5 | 68 | 1216 | 1565 |
| 57 | Materials Science | 1 | 62 | 6051 | 4528 |
| 58 | Energy Policy | 3 | 59 | 2604 | 3498 |
| 59 | Pharmacology | 3 | 57 | 5316 | 6061 |
| 60 | Drug delivery systems | 2 | 56 | 1906 | 2147 |
| 61 | Engineering | 5 | 55 | 3784 | 4449 |
| 61 | Total Quality Management | 3 | 55 | 525 | 666 |
| 63 | Islam | 3 | 52 | 588 | 320 |
| 64 | nanoscience | 4 | 49 | 2542 | 3461 |
| 65 | Microbial Ecology | 2 | 48 | 2635 | 3421 |
| 66 | Quality Control | 3 | 47 | 1947 | 2374 |
| 67 | global environmental change | 1 | 46 | 1382 | 1422 |
| 67 | Mineral resources | 3 | 46 | 564 | 944 |
| 69 | Agricultural Chemistry | 2 | 45 | 2792 | 2987 |
| 69 | Biomass Energy | 13 | 45 | 1206 | 3310 |
| 71 | Bioengineering | 2 | 44 | 5024 | 5672 |
| 71 | Green Technology | 2 | 44 | 577 | 603 |
| 73 | Solid State Physics | 3 | 41 | 3511 | 3746 |
| 73 | Composite Materials | 2 | 41 | 2975 | 3412 |
| 73 | Asia | 2 | 41 | 3614 | 3014 |
| 73 | polymerization | 1 | 41 | 4782 | 4006 |
| 77 | Electrochemistry | 1 | 40 | 4531 | 3824 |
| 78 | Biomedical Engineering | 3 | 39 | 5137 | 6401 |
| 79 | ecotourism | 1 | 38 | 433 | 433 |
| 80 | Photonics | 2 | 37 | 2196 | 2479 |
| 80 | behavioral medicine | 1 | 37 | 2137 | 2223 |
| 80 | Neural circuitry | 1 | 37 | 2843 | 2718 |
| 80 | human behavior | 1 | 37 | 3637 | 3903 |
| 80 | commerce | 1 | 37 | 2545 | 1889 |
| 85 | Mathematics | 7 | 36 | 4151 | 5112 |
| 85 | computer networks | 2 | 36 | 2997 | 3024 |
| 87 | Computer Science | 2 | 35 | 2717 | 2530 |
| 87 | Video Games | 1 | 35 | 188 | 89 |
| 87 | Luminescence | 7 | 35 | 872 | 1690 |
| 90 | Electrical Engineering | 3 | 34 | 3676 | 3424 |
| 90 | Surface Chemistry | 3 | 34 | 3515 | 4529 |
| 90 | Colloids | 3 | 34 | 3408 | 4667 |
| 90 | Investments | 1 | 34 | 1051 | 721 |
| 94 | Genomics | 1 | 33 | 4804 | 4708 |
| 94 | Chromosome mapping | 1 | 33 | 2884 | 3073 |
| 94 | gene mapping | 1 | 33 | 3109 | 3359 |
| 97 | Optoelectronics | 6 | 32 | 348 | 605 |
| 97 | educational innovations | 1 | 32 | 930 | 767 |
| 99 | Organometallic chemistry | 7 | 31 | 1313 | 2307 |
| 99 | Health | 3 | 31 | 2234 | 3287 |
| 101 | Computer Engineering | 1 | 30 | 1766 | 1401 |
| 102 | Quantum electronics | 1 | 29 | 2472 | 2085 |
| 102 | Optoelectronic devices | 1 | 29 | 1594 | 1086 |
| 104 | food technology | 4 | 28 | 2200 | 3780 |
| 105 | Industrial Microbiology | 1 | 27 | 3006 | 3316 |
| 105 | Nuclear Chemistry | 1 | 27 | 1742 | 1322 |
| 105 | Radiochemistry | 1 | 27 | 1690 | 1229 |
| 105 | Drug targeting | 1 | 27 | 644 | 809 |
| 105 | drug evaluation | 1 | 27 | 2265 | 2306 |
| 110 | Occupational Therapy | 6 | 26 | 678 | 1200 |
| 110 | Occupational Health | 6 | 26 | 714 | 1515 |
| 110 | Industrial Safety | 6 | 26 | 770 | 1795 |
| 110 | industrial hygiene | 6 | 26 | 735 | 1427 |
| 114 | Pharmacognosy | 1 | 24 | 2831 | 3180 |
| 114 | Medicinal plants | 1 | 24 | 2361 | 2634 |
| 114 | food industry | 2 | 24 | 855 | 1208 |
| 117 | Combustion | 1 | 22 | 1844 | 1913 |
| 117 | finance | 3 | 22 | 2278 | 2817 |
| 119 | Molecular Pharmacology | 1 | 20 | 1286 | 1657 |
| 119 | Pharmaceutical Chemistry | 2 | 20 | 4472 | 5655 |
| 119 | Drug design | 2 | 20 | 2229 | 3038 |
| 119 | peptides | 1 | 20 | 1626 | 1574 |
| 119 | proteins | 1 | 20 | 3202 | 3332 |
| 124 | Education | 7 | 19 | 2608 | 4568 |
| 124 | Psychology | 4 | 19 | 4316 | 7007 |
| 124 | Structural Engineering | 4 | 19 | 1469 | 2347 |
| 124 | Robotics | 1 | 19 | 2617 | 2620 |
| 124 | Sustainable Architecture | 9 | 19 | 22 | 279 |
| 124 | Bioorganic chemistry | 6 | 19 | 2151 | 4110 |
| 124 | Microwaves | 3 | 19 | 1463 | 1891 |
| 131 | Information Technology | 3 | 18 | 2751 | 3758 |
| 131 | Petroleum Engineering | 1 | 18 | 1287 | 1372 |
| 131 | Botany | 3 | 18 | 3635 | 5302 |
| 131 | Distance Education | 2 | 18 | 625 | 921 |
| 131 | Heterocyclic chemistry | 5 | 18 | 358 | 837 |
| 131 | Solid State Chemistry | 1 | 18 | 3176 | 3251 |
| 131 | Asymmetric synthesis | 5 | 18 | 43 | 249 |
| 131 | Zeolites | 1 | 18 | 1450 | 1828 |
| 131 | plant molecular biology | 2 | 18 | 1706 | 2725 |
| 131 | Plants | 2 | 18 | 2451 | 3255 |
| 141 | Nuclear Physics | 4 | 17 | 3423 | 4460 |
| 141 | Heat Exchangers | 1 | 17 | 1809 | 2288 |
| 141 | energy conservation | 1 | 17 | 3137 | 3789 |
| 141 | Fiber Optics | 1 | 17 | 1546 | 1634 |
| 141 | Cheminformatics | 1 | 17 | 631 | 820 |
| 141 | Informatics | 1 | 17 | 1423 | 1614 |
| 147 | Geophysics | 2 | 16 | 3884 | 5024 |
| 147 | Astrophysics | 2 | 16 | 3079 | 3722 |
| 147 | Geochemistry | 2 | 16 | 2187 | 3185 |
| 147 | Geodesy | 2 | 16 | 1015 | 1447 |
| 147 | Investment analysis | 4 | 16 | 645 | 1388 |
| 147 | International Finance | 1 | 16 | 2222 | 2390 |
| 147 | families | 1 | 16 | 1393 | 1396 |
| 147 | Capital market | 1 | 16 | 717 | 910 |
| 147 | Earth Sciences | 2 | 16 | 3663 | 4607 |
| 147 | Agriculture | 3 | 16 | 2382 | 3691 |
| 157 | Higher Education | 2 | 15 | 739 | 1026 |
| 157 | Developmental Psychology | 1 | 15 | 1586 | 1817 |
| 157 | environmental indicators | 1 | 15 | 1747 | 2415 |
| 157 | human development | 1 | 15 | 1272 | 1559 |
| 157 | adulthood | 1 | 15 | 230 | 297 |
| 162 | Economics | 2 | 14 | 4550 | 5011 |
| 162 | Education policy | 1 | 14 | 172 | 245 |
| 164 | Economic History | 1 | 13 | 5113 | 4568 |
| 164 | Quantum Gravity | 1 | 13 | 2298 | 2369 |
| 164 | Eating Disorders | 2 | 13 | 990 | 1604 |
| 164 | Feeding and Eating Disorders | 2 | 13 | 946 | 1538 |
| 164 | Food | 3 | 13 | 3167 | 5446 |
| 169 | Knowledge management | 3 | 12 | 539 | 1171 |
| 169 | Water quality management | 3 | 12 | 1967 | 3375 |
| 169 | Corporate governance | 1 | 12 | 1035 | 1344 |
| 169 | Obesity | 1 | 12 | 3026 | 4016 |
| 169 | organizational effectiveness | 1 | 12 | 785 | 933 |
| 169 | feeding behavior | 1 | 12 | 1122 | 1651 |
| 169 | corporate culture | 1 | 12 | 371 | 560 |
| 176 | Geriatrics | 1 | 11 | 4469 | 4960 |
| 176 | Surface-Active Agents | 1 | 11 | 1792 | 2512 |
| 176 | Environmental Geochemistry | 2 | 11 | 717 | 1452 |
| 176 | Gerontology | 1 | 11 | 3093 | 3278 |
| 176 | civilization | 1 | 11 | 2021 | 1053 |
| 176 | Surface properties | 1 | 11 | 1867 | 2609 |
| 176 | Nonprofit organizations | 1 | 11 | 591 | 828 |
| 176 | Minerals | 2 | 11 | 1010 | 1793 |
| 184 | Social Sciences | 4 | 10 | 3335 | 5396 |
| 184 | Nursing | 1 | 10 | 2926 | 3264 |
| 184 | Dynamics | 1 | 10 | 2684 | 2790 |
| 184 | System analysis | 1 | 10 | 3707 | 4236 |
| 184 | Plastics | 1 | 10 | 2615 | 2960 |
| 184 | Safety management | 1 | 10 | 1180 | 1466 |
| 184 | drug toxicity | 1 | 10 | 933 | 1443 |
| 191 | gene therapy | 1 | 9 | 1786 | 2541 |
| 191 | plasma spraying | 1 | 9 | 448 | 661 |
| 191 | water reuse | 1 | 9 | 566 | 970 |
| 191 | Genetic therapy | 1 | 9 | 1861 | 2647 |
| 195 | Genetic engineering | 2 | 8 | 2641 | 4403 |
| 195 | Metallurgy | 2 | 8 | 2814 | 3810 |
| 195 | Renewable Energy Sources | 2 | 8 | 3106 | 4953 |
| 195 | Molecular cloning | 2 | 8 | 1846 | 3137 |
| 195 | Genetic recombination | 2 | 8 | 1819 | 3092 |
| 195 | Calorimetry | 1 | 8 | 1900 | 2354 |
| 195 | actuators | 1 | 8 | 3057 | 3956 |
| 195 | Telecommunication | 1 | 8 | 3893 | 4268 |
| 195 | Recombinant DNA | 2 | 8 | 1923 | 3266 |
| 195 | Molecular structure | 1 | 8 | 3501 | 4170 |
| 195 | Heterocyclic compounds | 1 | 8 | 1574 | 1825 |
| 195 | transducers | 1 | 8 | 3057 | 3956 |
| 195 | Biodiversity | 1 | 8 | 3416 | 4295 |
| 195 | Thermal analysis | 1 | 8 | 1900 | 2354 |
| 209 | Biology | 6 | 7 | 7449 | 14878 |
| 209 | Behavioral research | 1 | 7 | 988 | 1443 |
| 209 | Socioeconomic Factors | 1 | 7 | 1416 | 2280 |
| 209 | Plant physiology | 1 | 7 | 2799 | 3691 |
| 209 | Marriage | 1 | 7 | 861 | 1257 |
| 209 | Family | 1 | 7 | 1519 | 2071 |
| 215 | Cytology | 1 | 6 | 5664 | 7221 |
| 215 | Engineering Mathematics | 1 | 6 | 3612 | 4022 |
| 215 | Numerical Analysis | 1 | 6 | 3233 | 3682 |
| 215 | Sedimentology | 1 | 6 | 1062 | 1503 |
| 215 | Cell Biology | 1 | 6 | 5441 | 7047 |
| 215 | Organizational learning | 2 | 6 | 659 | 1367 |
| 215 | soil pollution | 1 | 6 | 1104 | 1599 |
| 215 | Environmental risk assessment | 1 | 6 | 869 | 1294 |
| 215 | Teaching | 2 | 6 | 2092 | 3175 |
| 215 | environmental control | 1 | 6 | 477 | 776 |
| 215 | Learning | 2 | 6 | 1541 | 2734 |
| 215 | Spectrum analysis | 1 | 6 | 5279 | 6397 |
| 215 | Fluorescence | 1 | 6 | 895 | 1234 |
| 228 | Nuclear Engineering | 1 | 5 | 2426 | 2886 |
| 228 | Nuclear Energy | 1 | 5 | 1790 | 2050 |
| 228 | Mineralogy | 1 | 5 | 2015 | 2547 |
| 228 | Computational Biology | 1 | 5 | 4475 | 5780 |
| 228 | Statistical Mechanics | 1 | 5 | 1778 | 1989 |
| 228 | Computational Intelligence | 1 | 5 | 1933 | 2438 |
| 228 | Simulation Methods | 1 | 5 | 1745 | 2305 |
| 228 | Radiation | 2 | 5 | 2614 | 4133 |
| 228 | economic policy | 1 | 5 | 3621 | 4005 |
| 228 | Industrial Policy | 1 | 5 | 828 | 1184 |
| 228 | Taste | 1 | 5 | 582 | 953 |
| 228 | Radioisotopes | 2 | 5 | 1440 | 2422 |
| 228 | Islamic philosophy | 1 | 5 | 36 | 12 |
| 228 | Financial Institutions | 1 | 5 | 736 | 1052 |
| 228 | smell | 1 | 5 | 582 | 953 |
| 228 | Statistical physics | 1 | 5 | 4469 | 5247 |
| 228 | Condensed Matter | 1 | 5 | 4097 | 4718 |
| 228 | Food preferences | 1 | 5 | 661 | 1086 |
| 228 | Islamic civilization | 1 | 5 | 304 | 128 |
| 228 | Metals | 1 | 5 | 3058 | 3719 |
| 248 | Ethics | 1 | 4 | 1646 | 2319 |
| 248 | Electronics | 2 | 4 | 4228 | 6100 |
| 248 | Clinical Biochemistry | 1 | 4 | 1966 | 2805 |
| 248 | Sports Medicine | 1 | 4 | 3624 | 4317 |
| 248 | Medical Ethics | 1 | 4 | 1927 | 2656 |
| 248 | starch | 1 | 4 | 614 | 972 |
| 248 | Communication | 2 | 4 | 2528 | 4084 |
| 248 | rehabilitation | 1 | 4 | 3525 | 5019 |
| 248 | Exercise | 1 | 4 | 2186 | 2783 |
| 257 | Genetics | 1 | 3 | 5503 | 7275 |
| 257 | Mechanical Engineering | 1 | 3 | 3585 | 4409 |
| 257 | Medical Technology | 2 | 3 | 2374 | 4745 |
| 257 | Soil Mechanics | 2 | 3 | 1384 | 2252 |
| 257 | Rock Mechanics | 2 | 3 | 1116 | 1923 |
| 257 | Catalysis | 1 | 3 | 4176 | 5306 |
| 257 | Engineering Geology | 1 | 3 | 2049 | 2769 |
| 257 | Educational Psychology | 1 | 3 | 2067 | 2866 |
| 257 | diffusion | 1 | 3 | 670 | 651 |
| 257 | Virology | 1 | 3 | 4356 | 6075 |
| 257 | Mitochondrial DNA | 4 | 3 | 138 | 688 |
| 257 | Instructional materials | 1 | 3 | 125 | 273 |
| 257 | Decision making | 2 | 3 | 1884 | 3774 |
| 270 | Neurology | 1 | 2 | 7104 | 9109 |
| 270 | Law | 1 | 2 | 2357 | 2461 |
| 270 | Civil Engineering | 1 | 2 | 2888 | 3569 |
| 270 | Nutrition | 1 | 2 | 6231 | 8413 |
| 270 | Sociology | 1 | 2 | 4713 | 6409 |
| 270 | Geology | 1 | 2 | 4036 | 5307 |
| 270 | Cosmology | 2 | 2 | 1565 | 2228 |
| 270 | Social welfare | 1 | 2 | 1047 | 1737 |
| 270 | Nanoparticles | 1 | 2 | 2689 | 3877 |
| 270 | bioluminescence | 3 | 2 | 351 | 1210 |
| 270 | China | 1 | 2 | 4386 | 6071 |
| 270 | Social work | 1 | 2 | 2346 | 3386 |
| 282 | Arts | 1 | 1 | 976 | 1138 |
| 282 | Public Health | 1 | 1 | 8797 | 11877 |
| 282 | Cloud Computing | 1 | 1 | 687 | 1275 |
| 282 | Hydrology | 1 | 1 | 3693 | 5114 |
| 282 | Soil Science | 1 | 1 | 2746 | 3831 |
| 282 | Systems Biology | 1 | 1 | 2593 | 4155 |
| 282 | Physical organic chemistry | 1 | 1 | 2026 | 2873 |
| 282 | Diabetes mellitus | 1 | 1 | 3060 | 4776 |
| 282 | Mass Media | 1 | 1 | 1544 | 1983 |
| 282 | adolescence | 1 | 1 | 1455 | 2336 |
| 282 | Adolescent Psychology | 1 | 1 | 1353 | 2187 |
| 282 | Water Microbiology | 1 | 1 | 953 | 1793 |
| 282 | Korea | 1 | 1 | 697 | 1145 |
| 282 | Adolescent | 1 | 1 | 3305 | 4878 |
| 282 | press | 1 | 1 | 263 | 424 |
| 282 | construction industry | 1 | 1 | 300 | 599 |
| 282 | Youth | 1 | 1 | 1092 | 1815 |
| 282 | Insects | 1 | 1 | 2209 | 3131 |
| 282 | Europe | 1 | 1 | 5019 | 6815 |
| 282 | Entomology | 1 | 1 | 3322 | 4454 |
| 282 | Egypt | 1 | 1 | 1036 | 1940 |
| 282 | Diabetes | 1 | 1 | 3189 | 4886 |
| 304 | Cybernetics | 1 | 0 | 2460 | 3727 |
| 304 | Biosensors | 1 | 0 | 1990 | 3039 |
| 304 | Mathematical Physics | 2 | 0 | 3236 | 4814 |
| 304 | Social History | 1 | 0 | 885 | 1178 |
| 304 | Signal Processing | 1 | 0 | 3531 | 5003 |
| 304 | Image Processing | 1 | 0 | 3230 | 4647 |
| 304 | Broadcast Journalism | 1 | 0 | 73 | 146 |
| 304 | Islamic education | 1 | 0 | 84 | 112 |
| 304 | Chemical processes | 1 | 0 | 1131 | 1925 |
| 304 | United States | 1 | 0 | 8349 | 11572 |
| 304 | Longevity | 1 | 0 | 394 | 882 |
| 304 | Natural history | 1 | 0 | 5921 | 8405 |
| 304 | rejuvenation | 1 | 0 | 290 | 683 |
| 304 | Structure-activity relationship | 1 | 0 | 878 | 1534 |
